And samuel h



0. ROBERTS, Deod.

G. B. TUCKER. 6; S. H.

GAR WHEEL.

(No Model.)

ROBERTS, Executors;

J. B, 8: G. A. ROBERTS,

latented 0012.30, 1894; I

u. in

NITED STATES PATENT O F CE.

JAMES B. ROBERTS, GEORGE A.'ROBERTS, AND CARRIE B. TUCKER, OF THREE RIVERS, MICHIGAN, AND SAMUEL H. ROBERTS, OF DENVER,

COLORADO, EXEOUTORS- or CYRUS OBERTS, DECEASED.

CAR-WH EEL.

SPECIFICATION forming part of Letters Patent No. 528,278, dated October 30, 1894. Application filed July 14,1893. Serial No. 480,549. (No model.)

ERTS, deceased, do hereby present the following specification of said invention, reference being had to the accompanying drawings.

The invention consists in the peculiar con struction of a car wheel with an insulating sleeve in the hub, whereby in using a hand car on a road using an electric block system, the signals will not be operated by the hand cars.

The invention further consists in the peculiar construction of the sleeve and of a metallic bushing fitted within the sleeve and forming the bearing for the journal, all as more fully hereinafter described.

In the drawings, Figures 1 and 2 are horizontal sections through the hub of a wheel embodying the invention in slightly modified forms. Fig. 8 is a Section on line as w in Fig. 1. Fig. 4 is a similar section showing a slightly modified form.

In using hand-cars on the roads upon which the electric block signaling system is used it often misleads the trainmen if a hand car is used which will throw the signal.

In order to prevent the throwing of the signal the circuit between the Wheels on opposite rails must be broken. To break this circuit a sleeve of insulating material is placed within the hub A. The form preferably used is shown in Figs. 1, 2 and 3, in which the sleeve B is made of two parts a b meeting centrally of the hub and having at their outer edges, flanges c. The sections of the sleeve thus formed are forced in by hydraulic pressure from opposite sides of the hub and the bushing likewise made in sections (1 d is forced into the sleeve forming the structure, as shown in Fig. 2. This is well adapted to break the cir- 5o lface of the hub and the outer face of the sleeve, as shown in Fig. 4. The bushing and the sleeve are also looked together by keying or interengaging the parts in a similar manner, as shown in'Figs. 3 and 4:.

In Fig. 3 is shown a key F on the bushing engaging a corresponding keyway in the sleeve and keys G on the Sleeve engaging corresponding keyways in the hub.

In Fig. 4 is Shown the meeting edges of the sleeve and hub and sleeve and bushing with interengaging serrations.

What is claimed as the invention is- In a car wheel, the combination with the apertured hub, of a sleeve of insulating material consisting of two sections a b, theirin- '7 ner ends engaging and having lateral flanges c at their ends, and an inner metallic bushing formed in two sections 02 d, theirinner ends engaging and having lateral flanges engaging over the lateral flanges of the insulating 8o material, substantially as described.

In testimony whereof we affix our signatures in the-presence of two witnesses.

JAMES B. ROBERTS, GEORGE A. ROBERTS, CARRIE B. TUCKER, SAMUEL H. ROBERTS, Ewecutors of Cyrus Roberts, deceased.

Witnesses:

J. E. BUNN, GEO. KELLER. 

